Curtain rod threading device



Filed April l9 1938 l l vu c vvx to@ LwrZesD.Bro si? Patented Jan. 28,1941 PATENT OFFICE CURTAIN ROD THREADIN G DEVICE Charles D. Brobst,Aurora, Ill., assigner to Russell W. Allen and Loran Tower, both ofReading,

Mass.

Application April 19, 1938, Serial No. 202,958

1 Claim.

The present invention relates to curtain rod threading devices such asare used to facilitate threading a curtain rod through the hem of acurtain or like hanging and the invention aims to 5 improve generallyexisting devices for this purpose.

A preferred embodiment of the invention is illustrated in theaccompanying drawing wherein Fig. 1 is a face view of my improvedthreading l device ready to be inserted in one end of a curtain rod;

Fig. 2 is a similar view illustrating the threading device in engagementwith the. curtain rod, a portion of the latter being shown in section;and

l Fig. 3 is a sectional view through the curtain rod on the line 3-3 ofFig. 2, the threading device being shown in edge elevation.

According to the invention, my improved threading device comprisesathreading tip or head I0 of suitable material and a spring Wire closedretaining loop II having its free ends embedded within or otherwisesuitably secured to the head I0. The retaining loop II is adapted to beinserted in one end of a ilat curtain rod I2 to frictionally engage thewalls thereof so as to maintain the head I0 securely at the forward orentering end of the rod I2.

The threading tip or head I0 may be formed of any suitable material, asfor example wood, metal or a molded plastic composition, and preferablyis of a width and thickness slightly in excess of the width andthickness of the curtain rod so as to maintain all portions of thecurtain hem open and spaced from the entering edges of the curtain rod.The forward end of the tip or head I0 may be tapered inwardly,vertically and horizontally as at I3 to present a smooth blade-likeentering edge I4, and the rear end may be similarly tapered as at I5 toenter the channelled end of a fiat curtain rod as shown in Fig. 3.

The retaining loop I I is advantageously formed of a single piece ofspring wire, the ends of which are embedded in or otherwise secured asat I6 to the head I0, providing a closed pointed end I'I and elongatedyieldable sides I8. The loop is so constructed that in its normalcondition (see Fig.

1) the spacing between the sides I8 is greater than the width of thecurtain rod, the sides tapering toward the more pointed closed end I-l.Thus, when the loop is inserted in the curtain rod, the sides I8 arecompressed and frictionally 5 engage the inner walls of the channeledrod I2 throughout substantial lengths, the tension of the spring armsI8, being substantially at right angles to the inner wall of the curtainrod, aiding in preventing separation of the head I0 from the ad- .m

`jacent end of the curtain rod I2.

It will be apparent that the rear end of the tip or head Il) need not betapered as at I5 but may be formed with a dat end engaging the end ofthe curtain rod I2, as the particular spring l5 loop II engages thewalls of the rod I2 in such a manner as to hold the head against the endof the rod.

In use the wireloop portion of the threading device may be readilyinserted within the chan- 20 nel of a curtain rod, the side arms I8`automatically bearing against the inner wall of the rod to hold thedevice securely in place. The assembled rod and device may then beinserted through the hem of the curtain, the enlarged head I0 smooth- 25ly guiding all portions of the hem outwardly so that it will not besnagged by any rough edge at the entering end of the curtain rod.

Having described the invention, what I claim as new is: 30

A curtain rod threading device comprising an elongated elliptical wireloop having a closed end pointed to readily enter the channel of acurtain rod, the side arms of said loop being normally spaced apart adistance greater than the width of 35 said channel and beingcompressible inwardly upon insertion in the channel to frictionallyengage the inner walls of the curtain rod throughout a substantiallength, and a threading tip secured to the free ends of the loop andretained 40 thereby against the end of the rod, the side arms of saidloop engaging the channel under tension directed substantially at rightangles to the wall of the channel and throughout elongated areassubstantially inward and spaced from said tip. 45

CHARLES D. BROBST.

